Reactivity and Applications of d-Block Metals: Innovation for Sustainability

A special issue of Reactions (ISSN 2624-781X).

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 7744

Special Issue Editors


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Guest Editor
Centro de Química Estrutural, Associação do Instituto Superior Técnico para a Investigação e Desenvolvimento, Lisbon, Portugal
Interests: azamacrocyles; antimicrobials; antitumorals; metallodrugs
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Guest Editor
Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
Interests: design of functional coordination polymers; metal-organic frameworks (MOFs); coordination chemistry and organic synthesis; synthetic and catalytic processes; bioactive, catalytic, antimicrobial and drug-releasing nanomaterials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The importance of d-block metals has been known for centuries as they have been used for a variety of applications ranging from pigments to drugs. The accidental discovery of ferrocene in 1951 led to a rapid growth of the d-block metal chemistry, and since then, the development of organometallic chemistry has been remarkable. Many new classes of d-block metal complexes have been prepared, and numerous examples of new chemical reactivity have been reported. The current knowledge on d-block metal complexes is astonishing, and they can find applications in different areas and processes. Modern chemical challenges have impelled us not to neglect the knowledge already acquired in the field and to apply it to innovative solutions targeting sustainability. In this context, d-block metals can play an important role in the pursuit for more efficient and cost-effective processes and solutions for our everyday lifestyle.

The goal of this Special Issue is to report on the most current trends and uses of d-block metal complexes, gathering a collection of articles that highlight the current significance of these compounds in the most varied fields of expertise.

We look forward to receiving your submissions.

You may choose our Joint Special Issue in Crystals.

Greetings,

Dr. Luis G. Alves
Dr. Tiago A. Fernandes
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Reactions is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • d-block metals
  • Reactivity
  • Catalysis
  • Metallodrugs
  • Materials
  • Sustainability

Published Papers (2 papers)

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Research

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10 pages, 1228 KiB  
Article
Synthesis and Characterization of New Cyclam-Based Zr(IV) Alkoxido Derivatives
by Luis G. Alves and Ana M. Martins
Reactions 2021, 2(3), 323-332; https://doi.org/10.3390/reactions2030021 - 04 Sep 2021
Cited by 1 | Viewed by 2016
Abstract
In this study, new mono- and di-alkoxido zirconium(IV) complexes supported by tetradentate dianionic cyclam ligands were synthesized and characterized. These compounds were obtained by reaction of the parent Zr(IV) dichlorido species with one or two equivalents of the corresponding lithium alkoxido, whereas ( [...] Read more.
In this study, new mono- and di-alkoxido zirconium(IV) complexes supported by tetradentate dianionic cyclam ligands were synthesized and characterized. These compounds were obtained by reaction of the parent Zr(IV) dichlorido species with one or two equivalents of the corresponding lithium alkoxido, whereas (3,5-Me2Bn2Cyclam)Zr(OPh)2 was prepared by protonolysis of the orthometallated species (3,5-Me-C6H4CH2)2Cyclam)Zr with phenol. The solid-state molecular structures of (Bn2Cyclam)ZrCl(OtBu) and (4-tBuBn2Cyclam)Zr(OiPr)2 show a trigonal prismatic geometry around the metal centers. (Bn2Cyclam)Zr(SPh)(OtBu) and (Bn2Cyclam)ZrMe(OiPr) were prepared by reaction of (Bn2Cyclam)ZrCl(OR) (R = iPr, tBu) with one equivalent of LiSPh or MeMgCl, respectively. The reactions of (Bn2Cyclam)Zr(OiPr)2 and (4-tBuBn2Cyclam)Zr(OiPr)2 with carbon dioxide suggested the formation of species that correspond to the addition of four CO2 molecules. Full article
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Review

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32 pages, 4538 KiB  
Review
The Catalytic Role of D-block Elements and Their Compounds for Improving Sorption Kinetics of Hydride Materials: A Review
by Pratibha Pal, Jyh-Ming Ting, Shivani Agarwal, Takayuki Ichikawa and Ankur Jain
Reactions 2021, 2(3), 333-364; https://doi.org/10.3390/reactions2030022 - 18 Sep 2021
Cited by 12 | Viewed by 4701
Abstract
The goal of finding efficient and safe hydrogen storage material motivated researchers to develop several materials to fulfil the demand of the U.S. Department of Energy (DOE). In the past few years, several metal hydrides, complex hydrides such as borohydrides and alanates, have [...] Read more.
The goal of finding efficient and safe hydrogen storage material motivated researchers to develop several materials to fulfil the demand of the U.S. Department of Energy (DOE). In the past few years, several metal hydrides, complex hydrides such as borohydrides and alanates, have been researched and found efficient due to their high gravimetric and volumetric density. However, the development of these materials is still limited by their high thermodynamic stability and sluggish kinetics. One of the methods to improve the kinetics is to use catalysts. Among the known catalysts for this purpose, transition metals and their compounds are known as the leading contender. The present article reviews the d-block transition metals including Ni, Co, V, Ti, Fe and Nb as catalysts to boost up the kinetics of several hydride systems. Various binary and ternary metal oxides, halides and their combinations, porous structured hybrid designs and metal-based Mxenes have been discussed as catalysts to enhance the de/rehydrogenation kinetics and cycling performance of hydrogen storage systems. Full article
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